EU Programmes

Horizon Europe Work Packages, Gantt and PERT: A Complete Worked Example

One fictional project, SALTMARSH, carried through every table of section 3.1: six work packages, eight partners, 42 months, fourteen deliverables, six milestones, five critical risks, the staff-effort matrix, a Gantt chart and a PERT chart.

Last reviewed September 2026 · table formats from the Part B template v5.1 (January 2026)

Every guide to Horizon Europe work plans explains the rules. Very few show a work plan in which all the rules have been applied at once, so that the tables agree with each other, the person-months add up and the chart matches the deliverable list. This page is that example. SALTMARSH is invented, but every column follows the current template, every number reconciles, and the same project is costed line by line in the companion page on building the lump-sum budget table.

What section 3.1 asks for

Section 3.1 of the Part B template, Work plan and resources, has an indicative 12 pages, or 17 for lump-sum topics, and those pages include the tables. The template asks for a brief presentation of the overall structure of the work plan, the timing of the work packages and their components as a Gantt chart or similar, a graphical presentation of how the components inter-relate as a PERT chart or similar, and eight tables. It also advises a distinct project-management work package and visible tasks or work packages for data management, dissemination and exploitation, and communication. For the full walk through the rest of the template, see the Part B template, section by section.

The tables of section 3.1 and the columns the template requires (v5.1)
TableContentColumns
3.1aList of work packagesWP number · title · lead participant number · lead short name · person-months · start month · end month
3.1bWork package descriptionWP number · title · objectives · description of work by task, lead and role of participants, each task quantified
3.1cList of deliverablesnumber · name · short description · WP · lead short name · type · dissemination level · delivery month
3.1dList of milestonesnumber · name · related WP(s) · due month · means of verification
3.1eCritical risks for implementationdescription with likelihood and severity · WP(s) involved · mitigation
3.1fSummary of staff effortperson-months per participant per WP · totals; WP leader in bold
3.1gSubcontracting costsparticipant · cost · description and justification; core tasks cannot be subcontracted
3.1hPurchase costs (major equipment)participant · cost · justification of equipment costs, required where they exceed 15% of that participant’s personnel costs
Source: Standard Application Form (HE RIA and IA), Part B, version 5.1, section 3.1. SALTMARSH has no table 3.1g or 3.1h content in this page; both are worked in the lump-sum budget example.

The template defines the three objects the tables describe. A deliverable is a report or other output sent to the Commission or agency to ensure effective monitoring. A milestone is a control point that helps chart progress, may correspond to a key result that lets the next phase begin, and must be verifiable. A critical risk is a plausible event that could have a high adverse impact on the project’s ability to achieve its objectives. The glossary has the other terms used below.

The example project: SALTMARSH

SALTMARSH, Scalable Adaptive Living Tools for Marsh And Riverine Shoreline Habitats, is a 42-month Research and Innovation Action under Cluster 6, funded as a Type 2 lump sum. It designs nature-based living shorelines, tests them in a hydrodynamic flume, installs them at three pilot sites in Ravenna, Aveiro and Lesvos, and turns two years of monitoring into evidence coastal authorities can use to procure the designs. The consortium has eight partners from six countries, three of them widening countries, and the reporting periods end at months 18, 36 and 42.

SALTMARSH consortium (fictional)
NoShort nameOrganisationCountryTypeRole in the work plan
1AegCRIAegean Coastal Research InstituteGreece (widening)Research organisationCoordinator; leads WP1; hosts the Lesvos pilot
2ULVUniversitat del Litoral de ValènciaSpainUniversityLeads WP5 monitoring and modelling
3DELTADelta Hydraulics BVNetherlandsSMELeads WP3 nature-based solution design
4ILVIstituto Lagune VeneteItalyPublic research bodyLeads WP4 pilot deployment
5BWTBaltic Wetland TrustEstonia (widening)NGOLeads WP6 dissemination, exploitation, communication
6NORSNordic Remote Sensing ASNorway (associated)Large enterpriseLeads WP2 baseline mapping
7RAVComune di RavennaItalyPublic bodyHosts the Ravenna pilot
8AEAAtlantic Estuaries AgencyPortugal (widening)Public bodyHosts the Aveiro pilot; policy uptake

The project has six work packages. That sits inside the usual six-to-eight range, keeps each work package a substantial part of the plan, and follows the customary order of management first and dissemination last, with the scientific work packages in the sequence the work actually flows.

Table 3.1a: list of work packages

Table 3.1a — List of work packages
WP NoWork package titleLead participant NoLead participant short namePerson-monthsStart monthEnd month
WP1Project management and coordination1AegCRI34142
WP2Baseline mapping, data and requirements6NORS58112
WP3Nature-based solution design and engineering3DELTA96424
WP4Pilot deployment at Ravenna, Aveiro and Lesvos4ILV1181336
WP5Monitoring, modelling and policy evidence2ULV821342
WP6Dissemination, exploitation and communication5BWT36142
Total424

Two checks apply to this table before anything else. The person-months per work package must equal the column totals of table 3.1f, and project management should be a modest share of total effort: WP1 here is 34 of 424 person-months, or 8 percent.

Table 3.1b: one work package described in full

The template asks, for each work package, for its objectives and a description of work broken into tasks, naming the lead partner and the role of the other participants, with each task quantified so the resources can be justified and progress monitored. Deliverables are not repeated here because they are in table 3.1c. WP4 is the largest work package and the one with the most partners, so it is shown in full.

Work package number
WP4
Work package title
Pilot deployment at Ravenna, Aveiro and Lesvos
Objectives
O4.1 Obtain permits and prepare the three pilot sites by M20. O4.2 Install one engineered living shoreline per site by M24 (MS4). O4.3 Operate and maintain the pilots through two storm seasons to M36. O4.4 Establish a community co-management arrangement at each site that continues after the project.
Description of work and role of participants

T4.1 Permitting and site preparation (M13–M20; lead ILV; 22 PM). ILV compiles the three permit dossiers from the T3.3 engineering files and manages the consultations (10 PM). RAV (5 PM) and AEA (4 PM) run the municipal and regional procedures for Ravenna and Aveiro; AegCRI (3 PM) for Lesvos. Output: three permits and three site preparation plans.

T4.2 Installation of the three pilots (M19–M24; lead DELTA; 34 PM). DELTA supervises construction and the marine works subcontract (14 PM). ILV (8 PM) coordinates logistics across sites; RAV, AEA and AegCRI (4 PM each) provide site access, local contractors and safety supervision. Output: 1,200 m of living shoreline installed, as-built reports in D4.1.

T4.3 Operation and maintenance (M25–M36; lead ILV; 40 PM). ILV runs the maintenance programme and the storm-event response protocol (14 PM). ULV (10 PM) and NORS (8 PM) run the sensor arrays and post-storm surveys; DELTA (4 PM) assesses structural performance; RAV (3 PM) and AEA (1 PM) handle local repairs. Output: 24 monthly inspections per site, the O&M log in D4.2.

T4.4 Community co-management (M13–M36; lead AegCRI; 22 PM). AegCRI designs the co-management model and runs it at Lesvos (7 PM). BWT (6 PM) trains local facilitators; ILV (4 PM), AEA (3 PM) and RAV (2 PM) host the site groups. Output: three site groups meeting quarterly, a signed continuation agreement per site.

The per-task effort in the box adds up to the WP4 column of table 3.1f for every partner: AegCRI 14, ULV 10, DELTA 18, ILV 36, BWT 6, NORS 8, RAV 14 and AEA 12, 118 person-months in total. That reconciliation is the single most common thing evaluators find broken. The other five work packages follow the same pattern; their tasks are listed below in short form.

Tasks of the other work packages (short form of table 3.1b)
TaskTitleLeadMonthsPM
T1.1Consortium coordination and qualityAegCRIM1–M4220
T1.2Data management and open scienceAegCRIM1–M428
T1.3Risk, ethics and reportingAegCRIM1–M426
T2.1Remote-sensing baseline of three sitesNORSM1–M926
T2.2Field ground-truthing campaignsAegCRIM3–M918
T2.3Requirements and KPI frameworkULVM6–M1214
T3.1Design catalogue of living shorelinesDELTAM4–M1534
T3.2Hydrodynamic flume testingDELTAM10–M2030
T3.3Site-specific engineering and permits dossierDELTAM16–M2432
T5.1Monitoring protocol and seasonal campaignsULVM13–M4036
T5.2Ecosystem-service modellingULVM20–M3828
T5.3Policy evidence and briefsAEAM30–M4218
T6.1Communication and DEC planBWTM1–M4214
T6.2Stakeholder and policy engagementBWTM6–M4212
T6.3Exploitation and business planningDELTAM24–M4210
Task person-months sum to the work package totals in table 3.1a: WP1 34, WP2 58, WP3 96, WP5 82, WP6 36.

Table 3.1c: deliverables

Only deliverables essential for monitoring belong here, because each becomes a contractual obligation. SALTMARSH has fourteen, two or three per work package, numbered by work package and listed in order of delivery date. The data management plan and the plan for dissemination, exploitation and communication are both due by month 6, as the template requires.

Table 3.1c — List of deliverables
NumberDeliverable nameShort descriptionWPLeadTypeDissemination levelDelivery month
D1.1Project handbook and quality planRoles, decision rules, templates, quality review procedureWP1AegCRIRPU3
D1.2Data management planFAIR plan for remote-sensing, field and model data; updated M24 and M42WP1AegCRIDMPPU6
D6.1Plan for dissemination, exploitation and communicationTarget groups, messages, channels, KPIs per measureWP6BWTRPU6
D2.1Site baseline atlasHabitat, erosion and hydrodynamic baseline layers for the three sitesWP2NORSDATAPU9
D2.2Requirements and KPI frameworkFunctional requirements per site and the project KPI setWP2ULVRPU12
D3.1Nature-based solution design catalogueTwelve living-shoreline designs with performance envelopesWP3DELTARSEN15
D5.1Monitoring protocolHarmonised field and remote-sensing protocol for all pilotsWP5ULVRPU16
D4.1Pilot installation reportsAs-built documentation and photographs for each siteWP4ILVRPU22
D3.2Engineered prototypes for three sitesFinal designs tested in the flume, ready to installWP3DELTADEMSEN24
D5.2Ecosystem-service modelOpen model of flood attenuation, carbon and habitat gainsWP5ULVOTHERPU30
D4.2Pilot operation and maintenance logStorm events, repairs, costs and lessons per siteWP4ILVOTHERSEN36
D5.3Policy brief for coastal authoritiesEvidence and procurement guidance for regional adoptersWP5AEARPU40
D6.2Exploitation and business planMarket route for the design catalogue and servicesWP6DELTARSEN42
D1.3Lessons learned and final report inputsConsolidated results against the KPI frameworkWP1AegCRIRPU42
Type codes: R report, DEM demonstrator or prototype, DATA dataset, DMP data management plan, OTHER software or models. Dissemination: PU public (published automatically on CORDIS), SEN sensitive. Three SEN deliverables protect DELTA's design know-how and the business plan.

Table 3.1d: milestones

A three-year project usually carries around five milestones; SALTMARSH runs 42 months and has six. Each one is a state of the project that is true or false on a given month, and each names the artefact that proves it. A useful sentence pattern is MSx: what is true, by month n, verified by which document. MS3 and MS4 are also the gates on the critical path in the PERT chart below.

Table 3.1d — List of milestones
Milestone numberMilestone nameRelated work package(s)Due monthMeans of verification
MS1Kick-off held and consortium agreement signedWP11Signed consortium agreement and kick-off minutes
MS2Baseline atlas validated by the three site partnersWP29Written sign-off by RAV, AEA and AegCRI on D2.1
MS3Design freeze for the three pilotsWP318Design review record approved by the steering committee
MS4All three pilots installedWP424Installation reports D4.1 and site inspection photographs
MS5First full monitoring season completeWP530Season dataset deposited in the open repository with metadata
MS6At least two authorities decide to adopt a designWP5, WP640Letters of intent from two coastal authorities

Table 3.1e: critical risks

These are risks to implementation, not the external barriers to impact that belong in section 2.1. The template asks for likelihood and severity on a low, medium, high scale, with likelihood assessed after the mitigation is in place. Every mitigation below points to a task that already has effort assigned, which is what makes it credible; a mitigation with no budget behind it reads as a promise. For a structured way to score and rank them, use the risk assessment matrix.

Table 3.1e — Critical risks for implementation
Description of riskLikelihoodSeverityWP(s) involvedProposed risk-mitigation measures
Permitting for the Ravenna pilot takes longer than plannedMediumHighWP4Permit application starts in M4 inside T3.3; a pre-screened fallback site in the same lagoon is identified in D2.2
Storm damage to an installed pilotMediumHighWP4Design margins tested in the flume (T3.2); site insurance; repair effort reserved in T4.3
Remote-sensing data too coarse or cloud-affectedLowMediumWP2Ground-truthing campaigns in T2.2; drone survey as second source
A partner leaves the consortiumLowHighWP1Consortium agreement exit and replacement clauses; each task has a named second partner
Local opposition to shoreline worksMediumMediumWP6Community co-management from M13 in T4.4; stakeholder meetings before installation in T6.2

Table 3.1f: summary of staff effort

The staff-effort matrix is where evaluators check that every partner has a real role and that effort matches ambition. The work package leader’s figure is shown in bold, as the template asks.

Table 3.1f — Summary of staff effort (person-months)
ParticipantWP1WP2WP3WP4WP5WP6Total
1 AegCRI248101412674
2 ULV2681034464
3 DELTA2640186375
4 ILV28103610369
5 BWT142641431
6 NORS1201288251
7 RAV136143229
8 AEA138125231
Total3458961188236424
Checks: columns equal table 3.1a; every partner works in all six work packages; partner shares of total effort range from 6.8% (RAV) to 17.7% (DELTA); no work package depends on a single partner.

The Gantt chart

The Gantt shows each work package as a pale bar and its tasks as darker bars beneath, with deliverables as diamonds and milestones as triangles on the work package row. The dashed lines at months 18 and 36 mark the ends of the first two reporting periods. In a lump-sum project those lines matter for cash flow, not only for reporting, because a work package is paid only at the end of the reporting period in which it is completed. To build your own interactively and export it, open the Gantt chart creator.

SALTMARSH Gantt chart, months 1 to 42Six work packages and nineteen tasks. Diamonds mark deliverables and triangles mark milestones. Dashed lines mark the ends of reporting periods at months 18 and 36. The same data is in the table below the chart.M1M6M12M18M24M30M36M42End RP1End RP2WP1 Project management and coordinationWP1 Project management and coordination: M1 to M42T1.1 Consortium coordination and qualityT1.1 Consortium coordination and quality: M1 to M42T1.2 Data management and open scienceT1.2 Data management and open science: M1 to M42T1.3 Risk, ethics and reportingT1.3 Risk, ethics and reporting: M1 to M42WP2 Baseline mapping, data and requirementsWP2 Baseline mapping, data and requirements: M1 to M12T2.1 Remote-sensing baseline of three sitesT2.1 Remote-sensing baseline of three sites: M1 to M9T2.2 Field ground-truthing campaignsT2.2 Field ground-truthing campaigns: M3 to M9T2.3 Requirements and KPI frameworkT2.3 Requirements and KPI framework: M6 to M12WP3 Nature-based solution design and engineeringWP3 Nature-based solution design and engineering: M4 to M24T3.1 Design catalogue of living shorelinesT3.1 Design catalogue of living shorelines: M4 to M15T3.2 Hydrodynamic flume testingT3.2 Hydrodynamic flume testing: M10 to M20T3.3 Site-specific engineering and permits dossierT3.3 Site-specific engineering and permits dossier: M16 to M24WP4 Pilot deployment at Ravenna, Aveiro and LesvosWP4 Pilot deployment at Ravenna, Aveiro and Lesvos: M13 to M36T4.1 Permitting and site preparationT4.1 Permitting and site preparation: M13 to M20T4.2 Installation of the three pilotsT4.2 Installation of the three pilots: M19 to M24T4.3 Operation and maintenanceT4.3 Operation and maintenance: M25 to M36T4.4 Community co-managementT4.4 Community co-management: M13 to M36WP5 Monitoring, modelling and policy evidenceWP5 Monitoring, modelling and policy evidence: M13 to M42T5.1 Monitoring protocol and seasonal campaignsT5.1 Monitoring protocol and seasonal campaigns: M13 to M40T5.2 Ecosystem-service modellingT5.2 Ecosystem-service modelling: M20 to M38T5.3 Policy evidence and briefsT5.3 Policy evidence and briefs: M30 to M42WP6 Dissemination, exploitation and communicationWP6 Dissemination, exploitation and communication: M1 to M42T6.1 Communication and DEC planT6.1 Communication and DEC plan: M1 to M42T6.2 Stakeholder and policy engagementT6.2 Stakeholder and policy engagement: M6 to M42T6.3 Exploitation and business planningT6.3 Exploitation and business planning: M24 to M42D1.1 Project handbook and quality plan (R, PU), M3D1.2 Data management plan (DMP, PU), M6D6.1 Plan for dissemination, exploitation and communication (R, PU), M6D2.1 Site baseline atlas (DATA, PU), M9D2.2 Requirements and KPI framework (R, PU), M12D3.1 Nature-based solution design catalogue (R, SEN), M15D5.1 Monitoring protocol (R, PU), M16D4.1 Pilot installation reports (R, PU), M22D3.2 Engineered prototypes for three sites (DEM, SEN), M24D5.2 Ecosystem-service model (OTHER, PU), M30D4.2 Pilot operation and maintenance log (OTHER, SEN), M36D5.3 Policy brief for coastal authorities (R, PU), M40D6.2 Exploitation and business plan (R, SEN), M42D1.3 Lessons learned and final report inputs (R, PU), M42MS1 Kick-off held and consortium agreement signed, M1MS2 Baseline atlas validated by the three site partners, M9MS3 Design freeze for the three pilots, M18MS4 All three pilots installed, M24MS5 First full monitoring season complete, M30MS6 At least two authorities decide to adopt a design, M40
Work package Task Deliverable Milestone End of reporting periodHover any mark for its details.

The lump-sum rules add one decision to the Gantt. WP1 and WP6 run the full 42 months, so as drawn they could only be declared complete, and paid, at the final report. The Commission’s lump-sum guidance recommends splitting long work packages along the reporting periods, keeping the same content. For SALTMARSH that turns six work packages into ten: WP1a, WP1b and WP1c for management in RP1, RP2 and RP3, the same for WP6, with WP2 to WP5 unchanged. Each split work package keeps its own row in tables 3.1a and 3.1f and its own lump-sum share. The lump-sum budget example shows the payment schedule that results.

The PERT chart

The PERT answers a different question from the Gantt: what has to finish before what can start. SALTMARSH has a single critical path. The baseline atlas and requirements from WP2 set the design constraints for WP3; the design freeze at MS3 releases WP4 installation; and the installed pilots at MS4 are what WP5 monitors. Any slip on that chain moves the end of the project, which is why the Ravenna permitting risk is rated high severity and why its mitigation starts in WP3, six months before WP4 begins. WP1 and WP6 run alongside, and WP6 carries float until WP5 hands over the model and the policy evidence.

SALTMARSH PERT chartWP1 management spans the top and WP6 dissemination spans the bottom. The critical path runs WP2 to WP3 to WP4 to WP5, and WP5 feeds WP6 with the model and policy evidence.WP1 Project management and coordination, M1–M42WP2 BaselineM1–M12WP3 DesignM4–M24WP4 PilotsM13–M36WP5 MonitoringM13–M42D2.1 atlas, D2.2D2.1 atlas, D2.2MS3 design freeze, D3.2MS3 design freeze, D3.2MS4 pilots installedMS4 pilots installedD5.2 model, D5.3 briefWP6 Dissemination, exploitation and communication, M1–M42
Critical path: WP2 → WP3 → WP4 → WP5. WP1 and WP6 run alongside the whole project; WP6 carries float until WP5 delivers the model and policy evidence.

Ten checks before you submit

Ten checks before you submit

0 of 10 done

Templates to copy

Work package description skeleton

WPn  <Title>                                      Lead: <short name>   M<start>–M<end>   <PM> PM
Objectives
  On.1 <What will be true at the end, measurable>
  On.2 ...
Description of work and role of participants
  Tn.1 <Title> (M<a>–M<b>; lead <partner>; <PM> PM)
       <Lead> does <activity, quantified> (<PM> PM). <Partner> does <activity> (<PM> PM).
       Output: <countable result, links to Dn.x>
  Tn.2 ...

Milestone sentence

MSx  <State of the project that is true or false>   WP<n>   Month <m>   Verified by <named document or artefact>

The tables on this page are plain HTML, so you can copy them straight into a word processor as a starting structure. If you are assembling the work plan from partner contributions written in different formats, that merging step is what Consortium Merge is for. The rest of the consortium logic, from choosing partners to the consortium agreement, is in the consortium survival guide.

Frequently asked questions

How many work packages should a Horizon Europe proposal have?
The template does not fix a number; it asks for work packages proportionate to the scale and complexity of the project, each a substantial part of the work plan. Consultants commonly recommend six to eight balanced work packages for a typical RIA or IA, with project management as WP1 and dissemination and exploitation as the last.
What is the difference between a task, a deliverable and a milestone?
A task is a unit of work inside a work package with its own effort in person-months. A deliverable is an output sent to the Commission for monitoring, such as a report, dataset or demonstrator. A milestone is a verifiable control point that shows progress or triggers a decision, and it needs a stated means of verification.
How do I number deliverables?
Use the template convention of work package number followed by the deliverable's number within that work package, so D4.2 is the second deliverable of WP4. List them in order of delivery date in table 3.1c.
Which deliverables are mandatory in the first six months?
The data management plan and the plan for dissemination and exploitation including communication activities must both appear as distinct deliverables within the first six months, unless the topic says a plan is not required.
What do the deliverable type codes mean?
R is a document or report; DEM a demonstrator, pilot, prototype or plan design; DEC a website, patent filing, press action or video; DATA a dataset; DMP the data management plan; ETHICS and SECURITY deliverables relate to those issues; OTHER covers software, technical diagrams, algorithms and models.
Do I need a PERT chart?
The template asks for a graphical presentation of how the components inter-relate, naming a PERT chart or similar, alongside a Gantt chart or similar for timing. Evaluators expect both, and ESR analyses record negative comments when they are missing.
How is a lump-sum work plan different?
In lump-sum grants each work package is paid when it is completed, at the end of a reporting period. The Commission recommends splitting long work packages such as management and dissemination along reporting periods, so they can be declared complete and paid during the project. Section 3.1 also gets 17 indicative pages instead of 12.
Where do person-months go in the proposal?
Per work package in table 3.1a, per task in the work package descriptions of table 3.1b, and per partner per work package in table 3.1f. The three must agree with each other and with the budget in Part A or, for lump-sum topics, the detailed budget table.

Sources

  1. European Commission, Standard Application Form (HE RIA and IA), Part BPDF, version 5.1, 22 January 2026; section 3.1 instructions, tables 3.1a-3.1h, type and dissemination codes, definitions
  2. European Commission, Lump sum funding: what do I need to know?Slides, version 3.0, 24 June 2024; splitting work packages along reporting periods
  3. care4bio (NCP project), RIA/IA annotated template, 2026-27 topics updatePDF, 24 March 2026; NCP annotations on section 3
  4. Horizon Academy (NCP4HE), Report on ESR Analysis and Methods, D3.1Evaluator comments on work plans, risks and effort in 130 ESRs
  5. CriteriaI, Horizon Europe page limits and Part B template: 2026-2027 changesPage limits per type of action
  6. GetGrant, Work packages in Horizon Europe: deliverables, milestones and person-monthsConsultant heuristics: 6-8 work packages, 2-3 deliverables per WP, about 5 milestones for 3 years
  7. EMDESK, Developing a Horizon Europe proposal work plan in five steps
  8. Enspire Science, Work packages in Horizon Europe: how to do it right

Build your Gantt chart

Lay out your work packages, tasks, deliverables and milestones on a timeline, then export the chart for section 3.1.

EG

Founder & CEO, Proposia.ai

PhD researcher and Associate Professor in Computer Science, working at the intersection of algorithm design, applied mathematics, and machine learning. With Proposia.ai, I aim to transform research ideas into scalable AI solutions that support innovation and discovery.